I got the engine running the other day, but now that alternator will not charge the battery.

I am at a loss to why this is.
I made sure the singe green wire is plugged in.
I do NOT have a battery light on the dash.
All fuses are good.
There is continuity on all the wires for the alternator and there is 12v to the alternator main wire.
The fuseable links are all good.

* the P brake light is constantly lit on the dash and I do not know why. I did remove the parking brake lever assembly so the 1 wire is just hanging there, but even when I ground it out, it still stays lit. I only mention this because I have a lightning gauge cluster now instead of a regular cluster, but I also had the lightning cluster installed before I pulled the harness

I pulled the alternator and took it to autozone and they checked it, said it was fine.

I also pulled the regulator off another alternator I had laying around, and it made no diffirence.